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<html lang="zh-cn">
    <head>
        <meta charset="UTF-8"/>
        <meta name="viewport" content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0, viewport-fit=cover" />
        <!-- <meta name='viewport' content='initial-scale=1, viewport-fit=cover'> -->
        <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1" />
        <title>Document</title>
        <style>
        body {
            margin: 0;

            font-family: Helvetica;
            font-size: 16pt;

            -webkit-text-size-adjust: 100%;

            background-color: #eef;
        }

        * {
            box-sizing: border-box;
        }
        #topBar {
                background-color: #729fcf;
                padding: constant(safe-area-inset-top) constant(safe-area-inset-right) 0 constant(safe-area-inset-left);
            }

            #topBar a {
                display: inline-block;

                height: 100%;
                padding: 12px;

                border-right: 3px solid rgba(255, 255, 255, 0.5);

                color: white;
                text-decoration: none;
                font-weight: bold;
                font-size: 18pt;
            }

            #topBar a:last-child {
                border-right: none;
            }

            #bottomBar {
                position: fixed;

                left: 0;
                right: 0;
                bottom: 0;

                background-color: #3465a4;

                text-align: center;

                padding: 8px;
            }

            #bottomBar a {
                padding: 0 24px;

                color: white;
                font-size: 12pt;
                text-decoration: none;
            }

            h1 {
                margin: 12px 0 0 0;
            }

            h2 {
                color: #aaa;
                font-size: 12pt;
                text-align: left;

                margin: 0;
            }

            .post {
                width: 100%;

                margin-bottom: 50px;

                padding: 12px;
            }

            .post p:first-child {
                margin: 0;
            }

            @supports(padding: max(0px)) {
                #bottomBar {
                    padding-left: max(8px, constant(safe-area-inset-left));
                    padding-right: max(8px, constant(safe-area-inset-right));
                    padding-bottom: max(8px, constant(safe-area-inset-bottom));
                }

                .post {
                    padding-left: max(12px, constant(safe-area-inset-left));
                    padding-right: max(12px, constant(safe-area-inset-right));
                }
            }
        </style>
    </head>
    <body>
        <div id="topBar"><a href="#">Blog</a><a href="#">Photos</a><a href="#">Projects</a></div>
            <div class="post">
            <h1>Welcome</h1>
            <h2>two hours ago</h2>
            <p>Hi!</p>
            <p>Welcome to my sample blog!</p>
            <p>This post is here to help demonstrate how easy it is to take an existing site, along with full-width bars and fixed-position elements, and make it take full advantage of iPhone X's edge-to-edge display.</p>
            <p>The actual post describing how to adopt the new API is over on the <a href="https://webkit.org/blog/7929/designing-websites-for-iphone-x/">WebKit blog</a>.</p>
            <p>There, you will learn all about new WebKit features, including <code>viewport-fit</code>, <code>constant()</code>, safe area insets, and <code>min()</code> and <code>max()</code>.</p>
            <p>I hope that it helps you adopt these new features in your websites.</p>
            </div>
            <div id="bottomBar"><a href="#">About Me</a><a href="#">Contact</a><a href="#">Site Map</a></div>
    </body>
</html>